Ontologia

HydroBASINS lev08 watershed · #1080636490

Bassin de la Maggia

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 3 administrative regions : Bouza, Keita, Tahoua

Pfafstetter: 14254890

Sub-basin area

2 356,7km²

Upstream area

2 356,7km²

Discharge

1,33m³/s

Mean elev.

462m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de la Maggia626 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

  • Keita
    Tahoua · Niger
    1987.0 km²
    84.6% of basin
  • Tahoua
    Tahoua · Niger
    357.5 km²
    15.2% of basin
  • Bouza
    Tahoua · Niger
    3.7 km²
    0.2% of basin

1 intersecting protected areas

  • La Mare de Tabalak

    IUCN Ib

    Wetland of International Importance (Ramsar Site)

    6.06 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

298 distinct species · 996 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

996 obs · 29 cellules
Obs. / cellule
≥ 163
81–162
38–80
21–37
< 21

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 18 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.

ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de la Maggia : 14 espèces reliées par 17 interactions GloBI sur 2 types (connectance 11.1%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
18
Interactions affichées
17
Connectance
0.111
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

28,1°C

Annual rain

379mm

Moisture idx (CMI)

-0,82

Runoff

18mm/an

PET

2 084mm

AET

318mm

Mean slope

2,3°

Water table

402cm

Forest

0%

Crops

42%

Urban

1%

Protected

0%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)